Portable grease dispenser



Jn 17, 1930. R, MOULTQN 1,764,970

PORTABLE GREASE DISPENSER Filed DSC. 1, 1926 Patented June 17, 1930 ROIJLINH. MoUL'roimoF :snRwYN, ILLINOIS racism PORTABLE GREASE DISPENSER Application filed `December 1, 1526. Serial No. 151,924.

My invention relates to a portable grease dispenser ,andl has particular reference. to a portable device for the ypurpose of forcing lubricant, preferablyin a plastic form, to working parts of devices, as intoftransmission and differential gear housings of automobiles.

An objectof'my invention 1s the provlsion of a portable grease dispenser in which theY quantity ofgrease forced therefrom is measl0 ured to the customer so that a proper charge may be made to the customer based uponthe service rendered and the quantity of lubricant which is suppliedto each customer.

Another object of my invention is the pro- 15 vision of a grease dispenser which is easy and simple in operationand which can be easily moved from place to yplace'so that one'workmanmay easily handle the device in applying lubricant to the transmission and differ- 20 entials of automobiles.

Still another object of my invention is the provisionl of a portable grease dispenser whichis operable by Huid pressure, prefer.

ably compressed air, and which allows the fluid pressure toL escape from the vlubricant container when the containeris empty, so that no damage will result to the parts of the dispenser. Y

A further object is toprovide a device for 30 dispensing fluids or semi-fluids so constructed that quantities of the contents may be pregressively` and accurately measured.

WVith these and various yotherobjects in View, the invention consists of certain novel features of construction and operation as will be more fully described and particularly claims appended hereto.

l'n the drawings, wherein like reference characters are used to designate like parts.

Figure l is alvertical sectional elevation of my improved dispenser; A Figure 2 is a detailed sectional view part of the measuring device;

Figure 3 is a detailed sectional view of another part of the measuring device;

`Figure l is a detailed elevational view of a pointed out in the specicatiomdrawings and section of the measuring device taken at right angles to the view shown in Figure 3; and

- Figure 5 is a sectional plan 4of a part of the '24C around their outer edges,

of a l piston 22 intothe upper part of the container 10. The cover 18 has a central opening there- 0 measuring device, the same'being taken substantially in the planek as indicated by the lines 55 of Figure 3. A cylindrical container 10 is provided i which is mounted upon a base 11` in any suitable manner, said base having aconduit 12 centrally located with respect thereto and eX-A tending outward towards one side ofithe basey 11 where an externally -threaded nipple 13 is provided in threaded engagement with the base 11 in alignment with the conduit12, a* flexible hose 111 of any desiredlength being secured to the nipple 13 inany suitable 'man-vf ner. At the free end of the hose, a'valve 15 is provided, operable by a` handle 16, with' a nozzle 17 prcjecting outward from said valve and through which the lubricant is dispensedas into the diderential and transmission gear housings of an automobile. The container 10 has a cover'lS secured to the upper'end c thereof in any suitable manner with apres-` sure indicating gauge .19 aiiiXed thereto and a fluid valve 20/securedfto said cover in-any suitable manner to allow a fluid, such as 'compressed airw or the like, to be container 10,V the gauge 19indicating'the internal pressure of the fluid in the container 10. A bail 21 is secured to the container 10 to allowy for easy handling and transportation of the apparatus where desired. .l Loosely positioned in the container l0-is. aj piston or followerdesignated as a whole as'v 22, and comprising an upper plate 23, Va lower plate 24, and a center member 25, with a pair of oppositely 'turned annular flexible members 26 and 27 respectively, being placed between the upper` plate 22 and lower plate these members being held in close sliding engagement at the inner sides of the container 10 so that the compressed fluid in the upper part. will not leak to the lower chamber and the lubricant in the lower chamber will not leak past the in within which an externally threaded gland member 28 is fitted, the cover having are.-4 inforcing member 29 thereonwhich may be` threaded to the gland member 28,fsaid glandY member being inthreaded engagement with'= forced into the i an upper cooperating gland member 30. Suitable packing 31 is interposed in an annular chamber around its lower end to the piston 22 and extending upward through the gland members 23 and into an upwardly projecting pipe 33 which is internally threaded at its lower end and Fitted into threaded engagement with the upper end of the gland member 4 r1`he tube 33 has a front slot 34 formed therein and a rear slot 35, and has a cap 36V positioned in the upper end thereof in any suitable manner, which operates as a closure member for the tube 33. At the front side of the tube and adjacent the front slot 34, is a series of calibrations running from 0 to 32 respectively, in the form shown, which calibrations serve to .indicate the quantity of lubricant expelled from the container 'as will hereinafter be more fully described. The rod 32 has an indicating member 37 secured to the upper end thereof by means of a screw 38, the said indicating member extending outward and having a point 39 formed thereon, the said point extending to one side of the tube adjacent the rows of calibrations as indicated in Figures 1 and 4, the upper indicating edgeof said point being substantially horizontal and even with the top of the piston rod 32. Also mounted in the tube 33 is a plug 40 having a fiexible member 41 secured to the upper side thereof by means of a screw and plate connection 42, the member 41 being composed of rubber, leather or any flexible material, and which is adapted to hold the plug 40 in frictional engagement with the inner side of the tube 33 but allows for ready movement of the plug 40 inside the tube 33. A pair of buttoms or thumb screws 43 and 44 are provided which are inserted or` threaded into the plug 40 through the slots 34 and respectively, in the tube 33 Yand provide means by which the plug is manually moved in the tube 33. At the lower side of the plug 40 an indicator 45 is provided which is secured to the saidplug by a screw46, the said indicator extending outward through the slot 34 and having a point 47 thereon adapted to project toward the calibrations on the tube 33. l/Vhen the indicator 37 mounted on the upper end of the rod 32, and the indicator 45 mounted upon the plug, are positioned together, the points 39 on the indicator 37, and 47 on .the indicator 4,5, form an arrowhead with the central points of these two indicating members forming the point of the arrowy which extends toward the calibrationsy on the tube 33. The body-portions of the members 37 and 45 present parallel surfaces when brought into engagement with each other so they fit snugly together, forming the arrow point described' above. Adjacent the upper end of the rod 32 is a flattened portion 48 so that when the piston 22 is driven to the bottom of the container l0, and the flattened a rod 32 secured at portion of the rod passes through the gland members, a vent is formed through the glands allowing the compressed Huid to escape tothe atmosphere so that damage will not result to the device by attempting to force a further quantity of lubricant from the container after the follower has reached the bottom of thel ortainer 10 and the container has been empie The operation of the device is exceedingly simple in that after the container 10 has been filled with lubricant, as air and the like, is supplied to the upper kpart of the container 10, preferably to a pressure of approximately 45 pounds, this supply of compressed air being obtained from any suitable source such as ra filling station or the like, the pressure of this fluid being indicated by the gauge 19. The pressure in the upper part of the container forces the piston 22v into contact with the lubricant in the lower portion of the container 10, in

which position the indicator 37 discloses to the observer the amount ofglubricant in the container 10. In this position the plug; 40 is moved manually down the tube until the indicators 45 and V37 are'in contact with each other. When it is desired to eject lubricant from the container into lsay a transmission housing, the nozzle 17 is inserted into the opening in the transmission housing, .the

a compressed fluid, such l valve 15 opened by means of the handle 1 6,

whereupon the iiuid pressure -in thegupper portion of the container may force ton down expelling the lubricant `through hose 14 into the transmission housing, the rod 32 travelling downward at the. same time. When the transmission housing is filled or the desired quantity oflubricant has been injected into the housing, the indicator 37 will have travelled down, leaving the plug 4() in a stationary position and indicating the point from which the indicator 37 began its travel,

so that by referring to the calibrations on the side of the tube 33 and which may be spacedV thev pisto indicate pounds oflubricant based upon ,Y

the internal diameter ofthe container 10 and the predetermined travel of the piston 22, the number of calibrations betweenthe upper indicator 45 and the lower indicator 37, determines the number of pounds of lubricant which have been ejected from the container 10. After this operation is complete, the plug 40 is moved downward so that the two indicators are again in engagement with-each other sothat the device is ready for another operation and this process is continued until all of the lubricant is ejected from the container 10.

When it is desired to fill the container l10 with lubricant, the valve 20 is opened and the nozzle 17 attached to any power iilling apparatus and lubricant forced backwards through the nozzle 17, the valve 15'being opened in the meantime so that the container 10 is filled with lubricant, the compressed fluid in the upper portion of the container l0 being forced out through the valve 20. The rod 32 in the meantime travels upward through the tube 33, carrying with it the indicator 37 and pushing the plug l0 upward at the same time, it being understood that the thumb screws 43 and 4:4 have been loosened prior to the lilling action. Thereupon compressed fluid is forced into the upper part of the proportion of parts and the substitution of equivalents as circumstances may suggest or render expedient without departing` from the spirit or scope of my invention.

I claim:

1. A portable lubricant dispenser comprising in combination, a container, a piston dividing said container into two compartments, one of said compartments being yadapted to confine a compressed luid and the other adapted to contain a lubricant, a lubricant conductor connected to said container, a valve in said conductor, a rod connected to the piston, a calibrated tube secured to said container into which the said rod projects, an indicator movable with said rod and along said calibrations, and a manually movable normally stationary indicator mounted in said tube, said indicator being adapted to cooperate with said first named indicator to determine quantities of lubricant discharged and forming a stop for said rod to thereby indicate each initial reading of said calibrations for computing the amount of lubricant discharged at each operation of said dispenser.

2. In a device of the character described, the combination of a lubricant carrying container having discharge conducting means connected thereto, a pressure actua-ted piston reciprocally mounted in said container for discharging said lubricant, means whereby pressure may be introduced to said container and piston, a piston rod extending on the outside of said` container having means for relieving pressure from said container when said piston has reached a predetermined point, indicating means on said piston rod, a calibrated member associated with said indicating means, and adjustable means on said calibrated member for cooperating with said indicating means to :torni a stop to indicate each initial reading of said calibrations whereby discharge of lubricant from said container may be ascertained regardless of the amount of lubricant disposed in said container. 4 l

Signed at Chicago, Illinois, this 30th day of November, 1926. c

ROLLIN I-I. MOULTON.

llO 

